Best survey apps for cash?

[QuestionableMouse]

Thinking about ways to bring a bit more money in. I used to do surveys online but the website closed.

Just wondering if anyone uses a good survey app that actually pays out?

Thank you

I'm not sure which do cash - I take Amazon vouchers as payment. I use Crowdology, iSay and LifePoints, and think generally I get more surveys from the last 2 but the rate of reward is better from the first.

Thanks I'll try those. It's just something to bring in a bit extra that I can do on my break or while I'm waiting for stuff.